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PREDICTIVE DIAGNOSTICS
Eaton's Predictive Diagnostics group offers non-destructive testing technologies and sensors to assess the condition of medium and high-voltage electrical equipment. Valuable information about equipment condition allows optimal and timely Predictive Maintenance actions, part of an RCM – Reliability Centered Maintenance Program, to prevent insulation breakdown and equipment failure at a low cost. Using advanced on-line assessment methods, Eaton's Predictive Diagnostic solutions are applied to operating equipment to diagnose the condition of insulation and to detect electrical problems for equipment rated over 4000 V. This continuous and periodic testing using new, break-through technology, can detect insulation deterioration and other developing problems in:
We invite you to browse through this site for more information, as well as read through our papers presented at IEEE, EPRI, CIGRE and Doble conferences on the subject. Science of Predictive Diagnostics The integrity of medium and high voltage insulation systems can be assessed through Partial Discharge (PD) Analysis and Power Factor Monitoring. These predictive diagnostic technologies, specialized sensors and instrumentation, are used to quantitatively evaluate insulation integrity while the equipment is in operation. This non-invasive method of evaluating equipment without a shutdown improves productivity and ensures system reliability. Partial Discharge Analysis can be the foundation of a viable predictive maintenance program for medium or high-voltage equipment. This technology can be applied to motors, generators, switchgear, bus ducts, cables and their accessories and transformers. Periodical use of this technology allows identifying problem areas in insulation systems prior to failure. Trending of this data allows timely planning of corrective maintenance actions. Insulation failure accounts for about 84 percent of transformer failures. Because of this, continuous dissolved gas analysis is an important tool in measuring the integrity of the internal insulation system. Transformer bushing insulation failure accounts for about one third of the insulation failures, and so it makes sense to monitor insulation integrity with Power Factor Monitoring. With a continuous, on-line insulation integrity monitoring system, we can monitor for changes in power factor and capacitance, both indicators of bushing insulation condition. This testing is done under real operating conditions when temperature, voltage, vibration and stress are at their peak. Mail address: Phone: E-mail: |
RELATED INFORMATION
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Advantages of Continuous Monitoring of Partial Discharges in Rotating Equipment and Switchgear
(PDF, 385KB)
Our Response – Use of Resistive Temperature Detectors as Partial Discharge Sensors in Rotating Equipment
(PDF, 463KB)
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